The letter grade helps staff scan a list of DNS observations. It is not an inbox-placement score, a test message or proof that every sending service is correctly authenticated.

Read the domain row

1. Open PD Modules → Deliverability → Domains.
2. Find the intended domain using Search where it is within the displayed set.
3. Review Grade, the mail classification, SPF, DKIM selectors, DMARC and Checked.
4. Open Needs attention for the detail behind the result.

Displayed SPF and DMARC values can be shortened. A list of found selectors is not the complete DKIM record or a verified message signature. The grade is calculated from the module’s record checks and scoring rules, rather than from a real sending attempt.

Understand No mail and an ungraded row

The module uses observed MX or SPF presence to infer whether a domain sends mail. A domain without those observations can be ungraded when Also check domains that do not send mail is off. That inference cannot establish whether a website, application or external platform actually sends as the domain.

An ungraded or empty attention list is therefore not proof that no mail needs attention. A failed apex TXT lookup combined with no MX can also reach the ungraded path and suppress the lookup note. Check the actual sender inventory and lookup evidence before reassuring a customer.

Decide what needs investigation

Review the specific findings and current sending configuration rather than optimising only the letter. Missing optional enhancement records do not automatically lower the grade. A high grade can coexist with an unusable key, a legacy-policy interpretation or delivery problems outside DNS. Use real mail authentication and delivery evidence for the final operational check.

See the PD Email Deliverability WHMCS guide for related tasks, or explore PD Email Deliverability.